The officer was filmed on a mobile phone visibly hitting and kicking the student (Photo: WJZ)

Stephanie Rawlings-Blake, mayor of Baltimore said: "As a parent of a Baltimore City School student, I was appalled by what I saw - the behavior that was demonstrated in the video is certainly something you never want to see."

Officials have said the two officer, as well as the head of the city school's police force have been put on administrtive leave.

Karl Perry, School Chief Supports Officer, siad: "No matter what the circumstances are.. I am totally appalled. That behavior should never be tolerated. And it won't be."

It is not clear what led to the incident taking place.

Child adovacy groups are now demanding reform of the school police department's policies - which is separate from the city's municipal police force.